Molding-machine.



No. 784,535. PATENTED MAR. 14, 1905. H. A. BATTBNFELD.

MOLDING MACHINE.

APBLIOATION FILED NOV. 9, 1903.

4 SHEETS-SHEET 1.

Wi'i 71 e o'u'ed- 1711'2/ e 71.15017 m/nz M.

PATBNTED MAR. 14, 1905. H. A. BATTENPELD.

MOLDING MACHINE.

APPLICATION IILBD NOV. 9, 1903.

4 SHEETS-SHEET 2.

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No. 784,535. PATENTED MAR. 14, 1905. H. A. BATTENPELD.

MOLDING MACHINE.

APPLIOATION FILED Nov. 9, 1903.

4 SHEETS-SHEET 3.

No. 784,585. PATENTBD MAR. 14, 1905. H. A. BATTENFELD.

MOLDING MACHINE.

APPLICATION FILED NOV. 9, 1903.

' 4 SHEETS-SHEET 4.

UNITED STATES Patented March 14, 1905.

PATENT OFFICE.

HARRIET A. BATTENFELD, OF CLEVELAND, OHIO. ASSIGNOR TO THE BERKSHIREMANUFACTURING COMPANY, OF CLEVELAND, OHIO, A

CORPORATION OF OHIO.

MOLDING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 784,535, dated March14, 1905.

Application filed November 9,1903. Serial No. 180,342.

To ml]. whom it may concern:

Be it known that LHARRIET A. BAT'IENFELD, a citizen of the UnitedStates,residing atCleveland, in the county of Cuyahoga and State ofOhio, have invented a certain new and useful Improvement inMolding-Machines, of which the followingis a full, clear, and exactdescription, reference being had to the accoin 'ianying drawings.

This invention relates to improvements in molding-machincs, and moreparticularly to that class of machines which are adapted to fill flaskswith sand, compress the sand, and deliver them in a position to beremoved by the operator.

More specifically, the invention comprehends the use of a traveling bedadapted to receive the flask, to deliver it to the opening in thesand-hopper, carry it to a point where the sand may be compressedtherein, and, finally,

take it to a position where it may be removed from the, bed.

Referring to the drawings, Figure 1 is a front elevation of the machine.Fig. 2 is a side elevation. Fig. 3 is a vertical section through thecenter of the machine, and Fig. 4 is a vertical sectional view lookingfrom the front of the machine.

Any suitable frame may be employed in carrying out my invention; butlprefer to provide a frame consisting of the standards A .and A, soconstructed and of such contiguration that they will support all theparts necessary for the application of the invention. Extending from theupper ends of these standards A and A are guide-rods a, connected attheir upper ends by a cross-piece a for spacing the two standards apart.To the rear of the guide-rods a is the hopper 13, having a sheet'metalupper portion secured in a casting 6, which is provided with cars 5,through which are secured sup porting-bolts 1/ fastened rigidly insuitable ears in the standards. The

bottom of this hopper B is open for a purpose which will hereinafterappear.

The inner side of each of the standards A and A is providedwith aguideway (/3, adapted to receive a tongue 0, carried by a traveling bedC. This bed is substantially of the form in cross-section as shown inFig. 3, with the rearwardly-extemling elevated platform 0 arranged totravel under the lower end of the hopper and close the opening thereinwhen the front portion of the bed C is not under the same. A lip o 'issecured to the forward edge of the elevated bed portion 0 for thepurpose of preventing the spilling of material contained in the hopper,as will more fully appear. The forward portion of the bed C is providedwith a press-bed plate D, having a central opening (Z, which permits thepassage of mechanism to be described. Above this opening is what may betermed a stripping-plate (Z, having suitable openings therein for thepassage of the pattern members (Z which are adapted to move up throughsaid openings and into the flask, whereby the sand may be compressedaround said pattern members, after which they may be withdrawn throughsaid openings in the stripping-plate to permit the removal of the flaskfrom the machine. Projectionsdareprovided upon the strippingplate (Z ina position to receive cars (1" upon the flask E, thus insuring theproper positioning of the flask with relation to the pattern members.

Any suitable mechanism may be provided for lowering the patterns fromthe flask after the sand has been placed around them. I have, however,shown the pattern members (Z mounted upon vertically-reciprocating rodsd which have suitable bearing in the lower member of the bed and alsohave a cross-head d rigidly secured between the plate 4 and the lowerportion of the main bed. This cross-head J is provided with a slot (ZSecured to the main bed are pillow-blocks 0", adapted to receive a shaft0', provided with an operating-crank c at one end and between thepillow-blocks c with a pair of rock-arms c, carrying at their free endsa roller 0 which passes through the slot (Z in the cross-head (Z It willbe seen that when the operatingcrank is shifted the roller 0 willtraverse the slot and in doing so will reciprocate the rods (Z andwithdraw the pattern members.

The press and its construction will now be described, the bed portionthereof having been described in connection with the flask and thepattern mechanism.

Slidably mounted upon the guide-rods a is a cross-head F ofsubstantially the construction shown in the drawings and having swiveledto its outer ends the operating-knuckles f, which are rigid with theoperating-armsf.

These operatingarms are connected to a source of power which will beexplained in connection with the power mechanism for reciprocating thebed. On the under side of the cross-headF is a presser-platef having anapron f and so arranged that it may cooperate with the other parts tocreate a pressure upon the sand in the flask; but instead of the plate fitself contacting with the sand the bottom board of the flask, or whatis termed the presseeboard G, is provided to insure the proper amount ofcompression and to prevent the sticking of the sand to the presserplate.This bottom or presser board G has a depending portion 9, which isadapted to it within the flask and give the proper compression, whilethe main portion thereof extends out beyond the ends of the flask, whereit is engaged by suitable latches secured to the presser-plate forholding it to the same. These latches consist of pivoted members H,having downwardly-projecting hooks h, arranged to take upon the underside of the main portion of the presser-board Ur. The ends it of thelatches H extend out to a position where they may engage stops a, ad justably secured to the guide-rods a. Springs hold these latches downagainst the presser-plate f and in a position where they will hold thepresser-board in position against the presser-plate. The cross-head F isfurther provided with centering-pinsf which project from the under sidethereof through the openings in the stops 6/ and into suitable groovedlugs The lower ends of these pins f are tapered, and the upper ends ofthe lugs are beveled upon their interior, so that the pins will'be sureto strike the groove and insure the proper position of the main bed CWhen the press descends to compact the sand in the flask.

The operation of the mechanism thus far is as follows: The flask E isplaced upon the stripping-plate and the patterns are forced up intoposition. The bed is then shifted through mechanism hereinafterdisclosed, so that theflask travels back underneath-the hopper B, theflask is filled with sand, and the main bed returns to a position underthe press. The press then descends, carrying with it the bottom orpresser board G, and compacts the sand in the flask, the latches Hhaving in the meantime engaged the stops at and released thepresser-board. The power mechanism then conveys the main bed forward,where it stops in a position for bottom board in place after havingfirst withdrawn the pattern memberstherefrom through the mechanism forthat purpose. The machine is then ready to be again operated. When theflask will be placed upon the stripping-plate, the pattern members willbe forced up within the same and the bottom or presser board of theflask will be placed in the hook carried by the cross-head.

The power mechanism and its mode of transmission to the several partswill now be we plained.

Rotatably mounted in the standards A A is the main operating-shaft K,which runs through from one side of the machine to the other and isprovided on the outside of the standards with gears 7r, which mesh withgears M, rigidly secured to a cross-head-operating shaft m. These gearsM have crank-pins m, adapted to receive the knuckles f", rigid with thelower end of the cross-head-operating armsf. Thus it will be seen thecross-head will receive its reciprocation from the main operating shaftthrough the gearing described.

The main operating-shaft K receives its rotation from a belt-pulley N orfrom any other suitable source of power through a clutch mechanism 12.This clutch n is arranged to be thrown by a lever P, pivoted to an arm7),,-

zontal diameter of the gear M this frictionroller will throw the lever,and consequently throw out the clutch and disconnect the pulley from theoperating-shaft. The bed is then at rest and is in its forward position.

The normal position of the main bed C is forward, with the flask inadvance of the presser-plate, as j ust described. The machine remains atrest at this point, and the bed is not reciprocated until the mainoperatingthe bed must move forward to bring the flask into the forwardor normal position. This is brought about by a series of racks andmutilated gears, which will now be described.

On the under side of the main bed are two pairs of racks Q and Q, theracks Q being engaged by the mutilated gears 'q and the racks Q beingengaged by the pinions (1'. The mutilated gears 17 are keyed to thecrosshead-operating shaft m and receive their rotation therefrom, whilethe pinions (7 are mounted upon a transverse shaft (f, which receivesits rotation through pinions rigid therewith and mounted upon theprojected ends of the shaft (fina position to be engaged by the segments(1", rigidly secured to the cross-head operating shaft 11/.

The operation of the gearing just described is as follows: The mainoperating-shaft is rotated through the clutch mechanism, and thisrotation is conveyed to the cross-head-operating shaft 11/. The rotationof this shaft rotates the segments 1 which are then in a position toengage the pinions q, the rotation of which causes the rotation of theshaft and the pinions 1 these pinions being then in engagement withtheir racks Q. This carries the bed back into a position such that theflask may be filled from the hopper. In the meantime, however, thesegments have completed their operative connection with the pinions qand a section of teeth of the mutilated gears 1] have come into positionto engage their racks Q. The engagement of the teeth of these mutilatedgears with their racks causes the main bed to move forward; but thenumberof teeth of the mutilated gears is only suflicient to convey thebed to a position where the flask is under the presserplate. A gap inthe mutilated gears permits the bed to stay in this position, and thefurther rotation of gears M draws the cross-head F down and compressesthe sand in the flask in a manner before described. The racks Q areagain engaged by short series of teeth on the mutilated gears r and thebed is brought forward to its normal position.

1 have described a train of gearing and mechanism for reciprocating thebed and for operating the press; but I do not limit myself to thespecific construction shown or described, since any-form of operatingmechanism may be used to accomplish these results.

Having described my invention, L claim 1. In a molding-machine, thecombination with a reciprocating bed adapted to carry a flask, of aflask, a hopper, pressing mechanism, means whereby the flask on said bedmay be automatically tilled from said hopper, may be operated upon bysaid pressing mechanism and may be moved out of range thereof, and meanscarried by said bed for closing the opening in said hopper.

2. ln a molding-machine,-the combination with a reciprocating bedadapted to carry a flask, of a flask. a hopper and pressing mechanism,means whereby the flask upon said bed may be moved from its normalposition to the opening under said hopper, to the pressing mechanism andthen to its normal position, and a plate carried by said bed for clos- &

ing the opening in said hopper when said flask is removed from under thesame.

3. In a molding-machine, the combination with a frame, of areciprocating bed carrying a plate, means for securing a flask thereto,a hopper adapted to deliver molding-sand to said flask when in oneposition, means carried by said bed for closing the opening in saidhopper when said flask is not beneath the same, a press, and means formoving said flask un-' der said hopper, under said press and back to aposition out of range with thesame.

at. In a molding-machine,the combination with a reciprocating bedadapted to carry a flask thereon, of a flask, a hopper, pressingmechanism, means whereby said flask may be moved from its normalposition to said hopper to the pressing mechanism and then to its normalposition, and a plate carried by said bed on a level with the upperportion of the flask for closing the opening in said hopper when saidflask is removed from under the same.

5. In a molding-machine, the combination with the frame, of areciprocating bed having a plate thereon, a flask secured upon saidplate, a hopper arranged to deliver moldingsand to said flask, means forclosing the opening in said hopper when the flask is not under the same,a press, a presser-board carried by said press, means whereby saidpresserboard is left in the flask, and means for moving said bed to saidhopper to said press and out of range with the same.

6. In a molding-machine, the combination with a reciprocating bed,gearing therefor, a flask, a press arranged to compress the sand in saidflask, a presser-board carried by one member of said press, and meanswhereby said presser-board is left in said flask when the member of saidpress retires.

7. In a molding-machine, the combination with a reciprocating bed, ofgearing therefor, a flask, a press arranged to cooperate with said flaskand to compress the material therein, a presser-board carried by onemember of said press, and latches carried by the member of said pressfor normally holding said presserboard, an d means for releasing saidboard upon the descent of said member.

8. In a molding-machine, the combination, with a reciprocating bed, ofgearing therefor, a flask, a press arranged to cooperate with saidflask, latches carried by one member thereof, a presser board carried bysaid latches, and stops for engaging said latches to release saidpresser-board upon the retiring of the member of said press.

9. The combination of a frame, a reciprocating bed mounted therein,gearing therefor, a plate, a flask thereon, a reciprocating pressermember above said flask, means for reciprocating said bed, means forreciprocating said presser member, a presser-board, latches carried bythe presser member for engaging said board, and stops mounted upon theframe for releasing said board after the compressing action has takenplace.

10. In a molding-machine, the combination of the frame, of areciprocating bed having a plate, a flask removably secured thereto, ahopper carried by said frame above said flask, a closing-plate carriedby said bed and adapted to close the opening in said hopper, a pressermember located above said flask, means for reciprocating the same, apresser-board carried thereby, means for releasing said board upon thedownward movement of said presser member, means for moving said flaskunder said hopper, then under said presser-board, and finally out of therange of said presser member.

11. In amolding-machine, the combination with a reciprocating bed, of ahopper, pressing mechanism, an operating-shaft, another shaft, acounter-shaft, gearing between said operating-shaft and saidsecond-mentioned shaft whereby the sameis rotated, a mutilated gear uponsaid second-mentioned shaft arranged to mesh with a pinion upon saidlastmentioned shaft, a gear upon said last-mentioned shaft arranged tomesh with a rack upon said bed, and another mutilated gear upon saidsecond-mentioned shaft arranged to mesh with a rack upon said bed, allof said gears being arranged to move said bed from its normal positionto the hopper, from there to the pressing mechanism and finally back toits normal position.

12. In a molding-machine, the combination with a reciprocating bed, of ahopper, pressing mechanism, racks upon the under side of said bed, anoperating-shaft adapted to rotate in one direction, gearing between saidshaft and said racks whereby said bed may be moved from normal positionto the hopper where it will stop while the flask is filled, other gearsfor moving it tothe pressing mechanism, and another set of gears formoving it back to normal position after the sand has been completelypressed.

13. In a molding-machine, the combination with a reciprocating bedarranged to carry the flask, of a hopper, pressing mechanism, racks onthe under side of said bed, an operatingshaft arranged to rotatecontinuously in one direction, a counter-shaft provided with pinionsmeshing with onepair of said racks, and mutilated gears between saidfirst-mentioned shaft and one pair of said racks whereby the bed ismoved from its normal position to the hopper, from said hopper to thepress and finally back to its normal position.

14L. Ina molding-machine, the combination with a reciprocating bedcarrying the flask, of a hopper, pressing mechanism, racks on the underside of said bed, a main operatingshaft arranged to rotatecontinuouslyin one direction, a second shaft, gearing between these two shaftswhereby thelatter will rotate at a much lower rate of speed, acounter-shaft provided with a pair of pinions, a rack upon said bedmeshing with one of said pinions,a mu

tilated gear upon said second-mentioned shaft arranged to mesh with theother ofsaid pinions and another mutilated gear upon this same shaftarranged to mesh with a rack on the bed, all of said gears beingarranged in a manner such that the bed is moved from normal position tothe hopper, from said hopper to the press, from'the press back to thenormal position.

In testimony whereof I hereunto aflix my signaturein the presence of twowitnesses.

HARRIET A. BATTENFELD.

itnesses:

J. B. HULL, B. W. BROCKETT.

